Telecommunications – Transmitter and receiver at same station – Having particular housing or support of a transceiver
Patent
1998-02-02
2000-09-19
Urban, Edward F.
Telecommunications
Transmitter and receiver at same station
Having particular housing or support of a transceiver
455129, H04B 138
Patent
active
061224901
ABSTRACT:
An interrogation system for enabling transmission and/or reception of RF signals by a communication system. In accordance with the present invention, an interrogation is performed between a transceiver and an antenna prior to the transceiver transmitting or receiving RF signals via the antenna. The interrogation is used to determine whether the antenna transmits and/or receives RF signals having the power and/or frequency band required by the transceiver. The interrogation is performed by an interrogating device transmitting an interrogation signal to the other, responding device. The responding device transmits a response signal to the interrogating device in response to receiving the interrogation signal. The interrogating device determines if the response signal has a predetermined characteristic. If the response signal has the predetermined characteristic, transmission and/or reception of RF signals is enabled. An alternative use of the interrogation is to identify which one of a plurality of antennas connected to the transceiver is to be used to transmit or receive RF signals.
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patent: 5732335 (1998-03-01), Svensson
patent: 5822705 (1998-10-01), Lehtola
patent: 5862458 (1999-01-01), Ishii
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Crosslink, Inc.
Urban Edward F.
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